the default can beLimit each packet: limits the size of each package, which is not limited by defaultCapture packets in Promiscuous mode: Whether promiscuous mode is turned on. If open, crawl all the packets. In general, you only need to listen to the packets received or sent from this machine, so this option should be turned off.Filter: Filters. Crawl only packets that satisfy the filter rules (can be skipped temporarily)File: If you need to write the captured package to a file, enter the file
Cain Grab Bag Guide 1, Introduction:There is often a need to capture communication messages between devices during development testing, but sometimes the device being grabbed does not communicate directly with the host or device that is grabbing the packet, so it will not achieve the desired effect. Common ways to solve this problem are: (1), set the agent for the device that is caught, the packet is redirected to the agent, the agent is forwarded to
Bag-of-words model is a common document representation method in information retrieval field. In the information retrieval, the bow model assumes that for a document, ignoring its word order and grammatical, syntactic and other elements, it is only regarded as a set of several words, each word in the document appears independent, does not depend on whether other words appear. That is, any word that appears anywhere in the document is independent of th
Test instructions: To find the area on both sides of a straight-line split convex package.Solution: Because test instructions will say must pass, then there will not be a straight line and a side coincident with the case. We just have to find a convex hull of a straight line, and the other area equals the total area minus that area.How do you get a convex bag that is partitioned?Sweep through the past, if the sweep of the edge and the line does not in
// I won't talk about the question. It's a naked convex bag. Note that the radius of each vertex is 1, so 0.5 must be added after the radius is obtained ..// This question only changes the maximum triangle of HDU 2202 ..// Note the following ..// Note: N values must be assigned first, and the number of points must be greater than two. Place the subscript of the Convex Point in Sta [] instead of the Convex Point in point [].# Include # Include # Includ
Someone asked: Is there one ball in the bag that ranges from 1 to 10? If you want to retrieve three balls, do you have the chance that any two balls in the bag will not be connected? The invitation month took a try today. The algorithm is very general. We are looking forward to communication.
The approximate algorithm is a three-tier loop. One Ball is taken out first, and then any one is taken from the rema
Output a record in the Bag-proficient in android, IOS App application service development, and bagandroid
Closed json format content
{“item”: {
Organize a complete json format text output to the App together with the running result of the inner tag
Initialize records in the Bag (you can also query records from the database)
Output one of them
The value attribute parameter indicates the output value wi
First, through the tcpdump grab bagIntroduction to the Android platform as an example tcpdump grab bag
Download Tcpdump First
Push tcpdump to Mobile: adb push tcpdump/data/local
Modify tcpdump permissions: adb shell chmod 777/data/local/tcpdump
Operation phone, shortcut key CTRL + C can stop the package, will tcpdump open with Wireshark, analysis
Second, the computer to do WiFi hotspot, mobile phone connected on the comp
-root:http://autoroot.chainfire.eu/Need to clean up all data, pay attention to backupDo not be afraid of root after the insecure, root authority by Superu management authorization.Recommended after Root: Green protection, Fqrouter, xposed, Xprivacy.Second, the software-ADBIncluded in Android SDK, via USB Debug and Android Interactive tool-TcpdumpInstall a tcpdump related App,app boot will get root privileges will be tcpdump installed, of course, not afraid of trouble can also under the Android t
For security researchers or security enthusiasts who have just entered the field of mobile security, a big problem when conducting penetration testing of mobile apps is that they cannot crawl HTTPS traffic packets, causing penetration testing to continue. This time to introduce some mobile phone side how to crawl HTTPS traffic skills. The following will be mainly through the two levels of the chapter to gradually introduce to you:first chapter-Introductory article:Shallow level grab
First, what is sticky bagOnly TCP has sticky packet phenomenon, UDP will never sticky, why, and listen to my wordFirst, you need to master the principle of a socket transceiver message:The so-called sticky packet problem is mainly because the receiver does not know the boundary between the message, do not know how many bytes of data extracted at once caused byIn both cases, the sticky pack will occur:1. The sending side need to wait for the buffer full to send out, resulting in sticky packets (s
TCP has sticky packets, UDP non-sticky packets, will exceed buffer_size data discarded. UDP is only responsible for sending data, regardless of whether the server is open (not dependent on the server), the same operation without error, so unreliable.TCP stream-oriented, UDP-oriented message packets, each UDP segment is a message. The application must extract data in the message unit and cannot fetch any byte-sized data at a time.UDP does not need to be connected, so it can provide efficient serv
This is a Baidu know on the bag packing problem. My basic idea for solving this problem is to use greedy algorithms, also called greedy algorithms. The principle of the greedy algorithm is to find out what is currently the optimal solution.The problem is described as follows:There was a pile of sandbags, each with sand ranging from 1 to 100 in each bag.It is now required to pack the sand into a 100-volume box.The question is, how to use the fewest box
Mac Grab Pack uses a variety of software1, Paros relatively humble, less function, and JSON can not be automatically formatted.2,Charles Fee, you can use the trial version 30 minutes to quit once, but sometimes open grab bag catch, need to constantly re-open to take effect, do not know is not my computer, and every time there is a 10s waiting time, can not endure, there is sometimes to use the time, But it is almost 30 minutes to restart to use, or ha
ASP tutorial. NET WebForm development of the site grab package function. This feature requires the use of the account in the network through our own program to get the data within the site. During this period, HttpWebRequest was used for grasping the bag. The specific process of grasping the bag is not focused on the discussion. To share with you a little bit more about the role of viewstate in the ASP.net
Sticky bag phenomenonA program (command Ls-l) that first makes a remote execution of commands based on TCP; lllllll; PwdRes=subprocess. Popen (Cmd.decode ('utf-8'), Shell=True,stderr=subprocess. Pipe,stdout=subprocess. PIPE) The result of the encoding is based on the current system, if it is windows, then Res.stdout.read () read out is GBK encoded, at the receiving end needs to use GBK decoding and can only read the results from the pipelineAfter exec
analysis of Wireshark grasping bag
Wireshark is a very popular network packet analysis software, the function is very powerful. You can crawl various network packs and display the details of the network package. Start Interface
Wireshark is a network packet that captures a certain NIC on the machine, and when you have more than one network card on your machine, you need to select a network card.
Click Caputre->interfaces ... The following dialog box a
1. Software
The following two sections are free software. 1.1 Fiddler
The interface is shown in Figure 1-1.
Figure 1-1 Fiddler interface1.2 Wireshark
The interface is shown in Figure 1-2.
Figure 1-2 Wireshark Interface2. Computer Grab Bag
HTTP packets can be seen inside the fiddler.
HTTP and TCP, UDP packets can be seen in Wireshark. 3. Mobile Phone Grab bag
First set the Fiddler. See Figure 3-1
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